Itineraries flown on 20+ days in the Jun 6 – Jul 31, 2026 schedule · each leg’s record Aug 2025 – Jul 2026

No clear winner: Southwest’s LAS → KOA flights land within a few points of 87% on time whatever the hour.

Nonstops (seasonal or thin)


Southwest	LAS	KOA	6h 15m	87%	0.0%	365	Flying now

Best connections, any airlines

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Kailua/Kona on time. Total trip = scheduled departure to arrival, layover included (Kailua/Kona is 3 h behind Las Vegas). Layovers up to 4 hours. Pick a connection for the details.


Alaska Details →	LAS 01:55 → HNL 05:16AS 817	2h 44m Honolulu	HNL 08:00 → KOA 08:46AS 1038	9h 51m	99%	92%
Southwest Details →	LAS 10:20 → HNL 13:40WN 2240	3h 35m Honolulu	HNL 17:15 → KOA 18:05WN 1911	10h 45m	100%	90%
United Details →	LAS 06:00 → LAX 07:14UA 2039	1h 46m Los Angeles	LAX 09:00 → KOA 11:42UA 2373	8h 42m	99%	90%
Southwest + Alaskatwo ticketsDetails →	LAS 06:05 → SAN 07:15WN 4342	1h 57m San Diego	SAN 09:12 → KOA 12:15AS 222	9h 10m	93%	89%
United Details →	LAS 13:34 → SFO 15:16UA 1799	3h 52m San Francisco	SFO 19:08 → KOA 21:45UA 731	11h 11m	98%	88%
Southwest + Unitedtwo ticketsDetails →	LAS 12:10 → LAX 13:30WN 3168	3h 40m Los Angeles	LAX 17:10 → KOA 19:47UA 1718	10h 37m	98%	86%
United Details →	LAS 06:00 → SFO 07:35UA 643	2h 35m San Francisco	SFO 10:10 → KOA 12:37UA 694	9h 37m	99%	86%
Southwest + Unitedtwo ticketsDetails →	LAS 06:30 → DEN 09:20WN 2966	2h 55m Denver	DEN 12:15 → KOA 15:37UA 1758	12h 07m	100%	85%
Tight connection: often missed
Alaska Details →	LAS 15:12 → SEA 17:57AS 698	1h 02m Seattle	SEA 18:59 → KOA 22:10AS 200	9h 58m	69%	52%

Same layover, different day-part

How often the first flight arrives too late to connect (45 min minimum), for one-ticket layovers of 45–80 minutes.

Morning

SMF · 1h 12m · leaves 07:18 0%

SAN · 1h 08m · leaves 06:50 10%

SFO · 1h 18m · leaves 07:15 19%

Afternoon and evening

SEA · 1h 02m · leaves 15:12 31%

Delays build through the day, so an afternoon first leg eats the layover. A short connection is fine early in the morning and a gamble later on.

Mixing airlines

One ticketMiss it and the airline rebooks you; bags go through. 45 min is enough.

Separate ticketsMiss it and you buy a new ticket. Re-check bags, clear security again: we require 90 min.

The table above includes two-ticket connections (marked “two tickets”), held to the 90-minute minimum. One ticket only →

Regional partners count as the airline that sells them: SkyWest flying Delta Connection is one Delta ticket.

How these are worked out. Makes the connection: share of the last year’s flights where the first flight arrived with at least 45 minutes to spare (90 on separate tickets). Arrives on time: first flight not cancelled × connection made × second flight not cancelled and arriving within 15 minutes. Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.

About this data: US DOT on-time records, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. Schedules (which flights and connections exist, and their times) are as of Jun 6 – Jul 31, 2026; seasonal flights outside that window aren’t ranked. Rebuilt monthly. JSON